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VWR Glass Fiber Filter Grade 693. 4.2cm diameter. 1.1um pore size. Binder-free. Fine porosity. Fast flow rate. 1.1um particle retention. High-loading capacity. Wide thermal tolerance. Excellent precipitate retention. For use in dissolved and suspended sol
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VWR Glass Fiber Filter Grade 691. 4.2cm diameter. 1.5um pore size. Binder-free. Fine porosity. Fast flow rate. 1.5um particle retention. High-loading capacity. Wide thermal tolerance. Excellent precipitate retention. For filtration of proteins and cells g
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